Any body know how much BTC you would have mined if you bought an S9 from the first batch?
Let say you received the 1st batch on 15 Jun 2016, and mining @kano.is, with avg 14.1x Ths, u have 1246 rewards @ aprox. BTC5.839
I was actually curious if this was a good buy in btc terms (obviously it was great in $$ terms).
I was able to find one of the first buys from phil:
https://bitcointalksearch.org/topic/m.15031192
he paid roughly 4btc.
so, you got (if 100% uptime, which is questionable for batch 1, but possible) 1.839 btc extra, but used electricity for 2 years.
If your electricity cost is $0.1/kwh, then you used about 0.1X24X730=$1752
So, in btc terms at current prices, you spent about 0.3 btc on electricity if you did not use lower (or higher) priced btc to pay for electricity.
1.839-0.3=1.539 btc profit on 4btc investment or about 19%/year return in btc terms. Not bad, indeed.
I bought batch 3 and later batches, which made it worse as far as btc return is concerned. Plus, a couple of first batches lost 1 board Ea, which I had to replace. Overall, apart from participation in the network, which might be the most important part, it was pretty much useless.
